Imprecise excision of P{}Su(H)12, resulting in the substitution of a 1881bp fragment (from -1145 to +737bp, relative to the Su(H) transcription start site) with 9 unrelated nucleotides. This deletion removes both Su(H) and CIAPIN1 transcribed sequences. Boundaries approximate; not clear what transcription start was used.
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Homozygotes die as late embryos. Loss of l(2)35Bg activity blocks oogenesis.